| Event | Heat | Status | |
|---|---|---|---|
| Women 400 M Nike Open (Prelims) | 2| | ||
| Thursday 7:26 PM |
| Record | Athlete | Date | ||
|---|---|---|---|---|
| MR | Meet | Sanya Richards - Nike | 49.27 | 6/24/2006 |
| FR | Hayward | Shaunae Miller-Uibo - BAH | 49.08 | 4/24/2021 |
| AR | American | Sanya Richards - Nike | 48.70 | 9/17/2006 |
| WR | World | Marita Koch - GDR | 47.60 | 10/6/1985 |
| WQ | World Qualifier | 51.35 |
| Pl | Ln | Athlete | Time | ||
|---|---|---|---|---|---|
| 1 | 5 | Jaide STEPTER Unattached |
51.05 Q SB | 0.203 | |
| 2 | 9 | Lynna IRBY adidas |
51.42 Q | 0.252 | |
| 3 | 6 | Taylor MANSON Florida |
51.78 Q | 0.209 | |
| 4 | 3 | Na'Asha ROBINSON Unattached |
51.78 SB | 0.259 | |
| 5 | 4 | MaKenzie DUNMORE South Carolina |
51.89 | 0.173 | |
| 6 | 8 | Courtney OKOLO Unattached |
52.37 | 0.244 | |
| 7 | 7 | Quanera HAYES Nike |
54.13 | 0.218 |